Panel-raising machine



(No Model.) 3 Sheets--Sheetlz J. GREEN.

PANEL RAISING MACHINE.

No. 401,555. Patented Apr. 16, 1889..

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y PANEL RAISING MAGHINE. No. 401,555. Patented Apr. 16, 1889.

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(No Model.)

J. GREEN. PANEL RAISING MACHINE.

Patented Apr. 16, 1889.

lUNTTED STATES PATENT Ori-rca JOHN GREEN, OF ST. LOUIS, MISSOURI.

PANEL-RAISING MACHINE.

SPECIFICATION forming part 0f Letters Patent No. 401,555, dated April 16, 1889.

Application filed October l0, 1887. ySerial No. 251,963. (No model.) u

To all whomj it may concern.'

Be it known that I, JOHN GREEN, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Panel-Raising Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this speciiication.

This is a wood-working machine intended especially for what is called panel-raising, but applicable to other wood-working operations.

Figure I is an end view of the machine. Fig. II is a transverse section of the machine at II II, Fig. III. Fig. III is a side view of the machine, parts in section. Fig. IV is a perspective View of the table and parts above it. Fig. V is a detail perspective showing the manner of supporting the table. Fig. VI is an enlarged detail perspective View at VI VI, Fig. XIV. Fig. VII is a top view of the cutter-head. Fig. VIII is a bottom view of the cutter-head. Fig. IX is a side view of the cutter-head. Fig. X is a perspective view of a cutter. Fig. XI is a vertical section at XI XI, Fig. VII. Fig. XII is a perspective view of the table and parts above it, showing a modification of the cutters and a chip-breaking attachment. Fig. XIII is a side View of the parts shown in perspective in Fig. XII. FigfXIV is a horizontal section at XIV XIV, Fig. XIII. Fig. XV is a section at XV XV, Fig. XVII. Fig. XVI is a side view of the cutter-head, and Fig. XVII is a view of another side of the cutter-head. Fig. XVIII vis a detail section at XVIII XVIII, Figs. XIII 'and XIV.

The cutter-head has a horizontal disk, 8,

secured to the shaft by a nut, as usual, and through or in which are made curved slots 9 for the engagement of the cutters 10. The

extend above the top of the disk S, where they receive nuts that bear upon the top of the disk, (or wash ers thereon,) and so hold the keys in place. The cutters have cutting-edges 13 at the bottom. The inner end, le, of the cutter is at a distance from the center of the disk, and the cutter extends forwardly and outwardly in a curve from that point to the outer end, l2. The purpose of this is not only to give the cutter a drau -cut on the stuff, but to all parts of the knife the same inclination to the direction of movement of the cutter. It will be seen that if the cutters were straight and the edge deviating in any degree from a direction radial to the head the inclination of the edge to the direction of movement would vary from end to end of the cutter, and that if the cutter were radial to the head the edge of the cutter would be at right angles with the direction of movement, and consequently there would be no draw-cut. The cutting-edges l2 13 are shown meeting in a square corner; but the form of the cutter may be varied at this point, so as to change the character of the work. p

The table 18 is supported on the stand in such a way that it ca-n be set at any desired angle transversely, so that the edge 13 of the cutter will cut the stuff to a bevel. The two ends of the table are supported in the same manner, a description of the supporting device at one end applying equally to the other. 19 is a standard vertically adjustable in a recess in the end cross-bar, 20, of the main IOO or lowered. If the nuts upon the studs 29 are alone made loose, the table may be tilted on the two standards 19. The table has a central aperture, 30, through which the cuttershaft passes. Across this aperture extend bars l 3l, that support an adjustable bar, 32, upon which the inner end of the stuff rests. Each end of the bar is held down to one of the cross-bars 31 by a screw, 33, extending through ne of the bars and screwing into t-he other 34 is a screw at each end of the bar screwing in either the bar 32 or 31, and whose point bears against the other bar. As shown, (see Fig. VL) the screw 33 extends through a plain hole in the bar 3l and works in a screwthreaded hole in the bar 32, and the screw 34 works in a screw-threaded hole in the bar 32, while its end bears upon the bar 31. By the vertical adjustment of the bar 32 or the cutter-head the thickness of the edge of the panel'or other finished article is regulated.

The guide has two parts, 35, connected by abar, 36, said parts lying flat on the table and being attached thereto by screws 37 with thumb-nuts 38, said screws passing through transverse slots 39 in the guide. This means of attachment of the guide to the table enables the transverse adjustment of the guide. The guide has two guide-posts, 40, angular in transverse section.

4l is a guide-bar and chip-breaker located between the ends and at the outer edge of the guide 35 35, which has upwardly-extending ends 42, which have bearings in the rabbet-grooves of the guide-posts.

43 are screw-studs extending from the bearing ends 42 through vertical slots 44 in the posts 40. These screw-studs carry thumbnuts 45, which bear against the posts and hold the guide and chip-breaker to its proper vertical position, the position being such that its outer side is in line with the face of the guide and its upper side in close proximity to the lower edge, 13, of the cutters. The device acts as a chip-breaker by its contact with the edge of the stuff just beneath the A level of the cut, thus giving support to the edge and preventing any slivers being splitl springs are curved upward at the ends, where they rest upon the stuff being operated upon to keep it down upon the bar 32. f

In the modification shown in Figs. XII to XVII, inclusive, the chip-breaker and guide are shownas modiiied to suit a cutter-head having cutters suited to cut the edge of the stuff to a bevel. The chip-breaker 4l is beveled at the end, so that its edge may be set in close proximity to the edge 12 of the cutter, and it is connected to the upright i'lange 51. of the guide by a screw-bolt, 52, that passes through slots in the cutter and the guidelange 51, said slots being marked, respectively, 53 and 54.

55 is an adjustable guide, which has both end Wise and transverse movement. The guide 55 occupies a groove, 56, when in its inner position. It is attached by screws 57 to brackets 59, these screws passing through longitudinal slots 58 in the guide, which mode of attachment gives means for endwise or longitudinal movement of the guide 55. The brackets 59 are attached to the main guide 35 by screws 60, which pass through slots 6l of the brackets. This mode of attachment gives means for the transverse adjustment of the guide 55.

To enable a better understanding of my invention I have fully shown and described in this application the cutter-heads used in connection with my apparatus; but I have not claimed the same herein, as such forms the subject-matter of the claims in my application, Serial No.303,284,1iled March 14, 1889.

I claim as my invention- 1. The combination, in a wood-working machine, of the transversely-adjustable guide 35, the vertically-adjustable guide and chipbreaker 41, and the adjustable bar 32, all constructed and connected substantially as set forth.

2. The combination, with the main frame and table, of the brackets 27, secured to said table, the links or supports 28, hinged to said brackets, having slots, and bolts passing through said slots and securing said supports to the main frame, as set forth.

3. The combination, with the table and the cross-bars 20, of supports hinged to each corner of said table and having vertical slots therein, bolts passing through said slots and securing said supports to the cross-bars 20, recesses in said cross-bars, slotted standards set in said recessesand hinged to the table, and bolts passing through the slots in said standards and into said cross-bars 20, as set forth.

4. In a wood-working machine, the combination, with the table and the rotary cutterhead, of the combined guide-bar and chipbreaker 41, having the upwardly-projecting ends 42, adjustably secured to the table and adjustable to and from the cutter-head and adapted to serve as a side guide for the material, substantially as described.

5. The combination, with the guide-pieces 35 35 and the rotary cutter-head, of the com- IOO IIO

said bar is mounted, springs adapted to bear upon the stuff above said bar, and supports for holding said springs, substantially as set forth.

S. In a Woodworking machine, the combination, With the guide-pieces 35 35 and the bars 31, of standards carried by said pieces, a bar, 32, adjustably supported on said bars 31 and adapted to support the stuif, and springs adjustably secured to said standards and adapted to rest upon the stuff, substantially as set forth.

9. The combination, with the cutter-head, the table, and the guide 35 35, having slotand-screW connection with said table, of the combined guide-bar and chip-breaker 4-1, having Vthe vertical slot-and-soreW connection with said guide 35 35, whereby said guide-bar and chip-breaker 41 is adjustable vertically and longitudinally to and from the Icutterhead, as set forth.

JGHN GREEN.

In presence 0- JAs. E. KNIGHT, SAML. KNIGHT. 

